Improvement in gun-looks



@witch gisten @anni @fitte JOHN FRANKLIN CRABTREE AND WILLIAM NEWTON GRABTREE, OF VISALIA,

CALIFORNIA.

Letters Patent No. 75,248, dated March 10, 1868.

IMPROVEMENT IN GUN-LOCKS.

Be it known that we, JOHN, FRANKLIN CRABTREE and WILLIAM NEWTON Cnnnrnnn, of the town of Visalia, county of Tulare, State of California, have jointly linvented a. new and useful SeifeActing Hair-Trigger and Safety-Catch for Gun-Locks; and we do hereby declare that the following is a full, clear, and exactfdescription of the operation and construction of the same, reference being had to the annexed drawings, making a part of this specification, in which-4 Figure 1 is a section ofthe gun-lock, showing its position.

Figure 2, a detached detail of the hair-trigger; and

Figure 3, a detached detail of the safety-catch.

To enable others skilled inthe art to make and use our invention, we will proceed to describe the construction and operation of the same, as follows:

We construct the hammer A of the lock Awith the small teeth or indentations at its lower part, as shown at a a, into which a pawl-piece, B, catches. This pawlpieee is hung on the pivot b, and is pressed against the hammer by a spring, c c, formed of a portion of a gnard-piece, D. Upon the same pivot with the pawl the trigger E is swung. In this trigger the lever F catches, which is itseli' pressed downwards by the main hammerspring G. This lever also catches under a projection, d, formed on the pawl-piece B.

The operation of our gun-lock is as follows: The pawl-piece B, swinging on the pivot b, is', by the action of the spring C, pressed against the hammer, and catching in the first indentation, a, the trigger E, swinging on the samepivot, is, by a separate spring, forced upon the lever F, which is kept down by the projection d on the pawl-pierce B. vThe hammeris now set back to full cock, bringing the kmain-spring -G down. upon theA small end of the lever, thus giving it a tendency to ily upwards and release' the pawl-piece from the hammer, but is held from so doing by the trigger. The trigger, upon being set back, releases this lever, which, being acted upon by the main-spring, ies upwards, and, throwing back the pawl, the hammer is released and iiies back, causing the discharge of the gun. The small lever F, being now released from the main-spring, resumes its former position by being pressed downwards by the projection Z on the pawl-piece, which is acted upon by the spring C, and the trigger is again pressed upon it bythe spring C, and the lock is again set, requiring only the hammer to be set back, thus bringing down the .main-spring, to which itis connected by the link H, to again give the lever an upward tendency.

We also construct a spring-catch or fastening of steel, I, attached firmly to the side of the stock at K, and made to lit over the hammer at L. This piece has a tendency to set against the hammer, and keep the same immovable. We also construct a small piece, M, swinging ou the pivot m,'upon the outside of the cheek ofthe stock. This piece has its upper portion, an oblong'and bevelled slot, O, into which a pin, N, attached to the spring-catch, plays. v v

The operation' is as follows: The spring-catch, being set against the hammer, lits around it and holds the same immovable, when, by swinging the small lever M, and causing the inclined slot to act against the pin N and press it backwards, the spring-catch I is released from the hammer A, and the lsame is ready for cooking.

What we claim as our invention, and desire 'to secure by Letters Patent, is

1. The pawl-piecc B, in combination with the trigger E and the lever F, acted upon bythe main-spring G.

2. The spring-catch I, in combination with the lever M, with the inclined oblong slot O, for the purposes described and in a manner substantially as' set forth. v

.IOL-IN F. CHAMBER- WM. N. CRABTREE. Witnesses:

ALVA J. A'rwnLL,

F. W. BLAKE. 

